80878061 has 8 divisors (see below), whose sum is σ = 93420864. Its totient is φ = 69200320.

The previous prime is 80878043. The next prime is 80878081. The reversal of 80878061 is 16087808.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80878061 - 2⁶ = 80877997 is a prime.

It is a super-2 number, since 2×80878061² = 13082521502239442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80878081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216065 + ... + 216438.

It is an arithmetic number, because the mean of its divisors is an integer number (11677608).

Almost surely, 2^80878061 is an apocalyptic number.

It is an amenable number.

80878061 is a deficient number, since it is larger than the sum of its proper divisors (12542803).

80878061 is a wasteful number, since it uses less digits than its factorization.

80878061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432531.

The product of its (nonzero) digits is 21504, while the sum is 38.

The square root of 80878061 is about 8993.2230596155. The cubic root of 80878061 is about 432.4576429500.

The spelling of 80878061 in words is "eighty million, eight hundred seventy-eight thousand, sixty-one".